TF 310 is a concentrated cleaner designed to safely and efficiently remove varnish and oxidized deposits from critical transmission components. Releases sticking valves and solenoids. Contaminants are flushed out with the used oil.

Tf 320:

TF 320 is designed to improve automatic transmission fluid thermal stability. A concentration of critical additives improves fluid oxidation stability and reduces varnish and sludge buildup on sensitive transmission components. Helps maintain shift quality. Conditions seals and O rings to keep them soft and pliable. Meets specifications issued by major automotive manufacturers around the world. These two products will not void OEM warranty.